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grommunio vs VerneMQ

A side-by-side editorial comparison of grommunio and VerneMQ — release velocity, themes, recent moves, and the top alternatives to consider.

grommunio vs VerneMQ: at a glance

FeaturegrommunioVerneMQ
SectorCommsComms
Velocity score0.02.5
Sparks · 30d00
Top themesgroupware, self-hosted-email, release-notes, pointer-feedmqtt, message-broker, clustering, shared-subscriptions
Last editorial update6h ago1h ago
WebsiteVisit →Visit →

What is grommunio?

grommunio's feed publishes release pointers only; the changes themselves live on GitHub.

The crawled feed carries release-note stubs from 2022 to 2026, each the same sentence pointing to GitHub for the detailed logs. 2026.06.2 is the newest, published at the end of September. Nothing in the feed states what changed in any release.

Read the full grommunio trajectory →

What is VerneMQ?

VerneMQ follows its year-in-the-making 2.2.0 with a quick round of subscription fixes.

VerneMQ releases infrequently; 2.2.0 on August 9 gathered about a year of cluster and connection work, including a socket-counting fix under rapid reconnects and faster inter-node readiness checks. 2.2.1 on October 16 followed with fixes for stale shared subscriptions after trie restarts, enforcement of non-zero message ids, and new webhook connect options.

Read the full VerneMQ trajectory →

grommunio vs VerneMQ: editorial side-by-side

G0.0

grommunio's feed publishes release pointers only; the changes themselves live on GitHub.

◆ Current state

The crawled feed carries release-note stubs from 2022 to 2026, each the same sentence pointing to GitHub for the detailed logs. 2026.06.2 is the newest, published at the end of September. Nothing in the feed states what changed in any release.

◆ Where it's heading

The only signal available is cadence, and it is thin and irregular: twelve published notes across roughly five years, with 2023.11.x, 2025.01.x and 2026.06.1 as the visible markers. That is a release-notes page maintained as an index rather than a changelog. Reading direction from grommunio would require the GitHub logs these notes point at.

◆ Prediction

Expect the next entry to be another dated pointer of the same form. Whether grommunio's real release cadence matches this feed cannot be determined from what is published here.

V
VerneMQ
COMMS
2.5

VerneMQ follows its year-in-the-making 2.2.0 with a quick round of subscription fixes.

◆ Current state

VerneMQ releases infrequently; 2.2.0 on August 9 gathered about a year of cluster and connection work, including a socket-counting fix under rapid reconnects and faster inter-node readiness checks. 2.2.1 on October 16 followed with fixes for stale shared subscriptions after trie restarts, enforcement of non-zero message ids, and new webhook connect options.

◆ Where it's heading

Two months between 2.2.0 and 2.2.1 is quick for this project, which suggests 2.2 is getting active maintenance. The work stays inside the broker: subscriptions, clustering and protocol correctness rather than new features.

◆ Prediction

Further 2.2.x patches are more likely than a new minor; the feed gives no sign of 2.3 work.

Alternatives to grommunio and VerneMQ

Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either grommunio or VerneMQ.

See all grommunio alternatives → · See all VerneMQ alternatives →

Recent activity from grommunio and VerneMQ

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 17d agoVerneMQVerneMQ 2.2.1
  2. 1mo agogrommunioRelease Notes 2026.06.2
  3. 2mo agoVerneMQSocket-count fix, WS(S) anonymous override, faster cluster readiness
  4. 4mo agogrommunioRelease Notes 2026.06.1
  5. 6mo agoVerneMQTesting candidate later folded into 2.2.0
  6. 7mo agoVerneMQSUBACK error-path fix and routing-table memory reduction
  7. 1y agoVerneMQSyslog boot fix and an HTTPS config regression from 2.1.0
  8. 1y agoVerneMQBreaking on-disk metadata format change
  9. 1y agogrommunioRelease Notes 2025.01.2
  10. 1y agogrommunioRelease Notes 2025.01.1
  11. 2y agogrommunioRelease Notes 2023.11.3
  12. 2y agogrommunioRelease Notes 2023.11.2

Frequently asked questions

What is the difference between grommunio and VerneMQ?

They serve adjacent needs but don't currently overlap on shipped themes. VerneMQ is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is grommunio better than VerneMQ?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. VerneMQ is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.

What are the best alternatives to grommunio?

Top grommunio alternatives in Comms are ranked by recent ship velocity. Browse the "grommunio alternatives" section above for the current picks, or visit /alternatives/grommunio for the full list with editorial commentary on each.

What are the best alternatives to VerneMQ?

Top VerneMQ alternatives in Comms are ranked by recent ship velocity. Browse the "VerneMQ alternatives" section above for the current picks, or visit /alternatives/vernemq for the full list with editorial commentary on each.